Pathologic Variant

Incidence

Conventional/Classic

65% to 85%

Follicular Variant

15% to 20%

Tall Cell

5% to 10%

Solid

1% to 3%

Diffuse sclerosing

1% to 2%

Papillary Micro-Carcinoma

Oncocytic

Columnar Cell

Clear Cell

Morular Cribriforme

Marco-follicular

PTC with Hobnail Characteristics

PTC with Stroma Similar to Fascitis

Combined PTC and Medullary Carcinoma

PTC with dedifferentiation to Anaplastic Carcinoma